Tag: 200-300

In 2019,Journal of Organic Chemistry included an article by Wisniewski, Steven R.; Savage, Scott A.; Romero, Evan O.; Eastgate, Martin D.; Tan, Yichen; Simmons, Eric M.; Plata, R. Erik; Sowa, John R.; Blackmond, Donna G.. Related Products of 591-18-4. The article was titled 《Utilizing Native Directing Groups: Mechanistic Understanding of a Direct Arylation Leads to Formation of Tetracyclic Heterocycles via Tandem Intermolecular, Intramolecular C-H Activation》. The information in the text is summarized as follows:

A mechanistic study on a direct arylation using a native picolylamine directing group is reported. Kinetic studies determined the concentration dependence of substrates and catalysts, as well as catalyst degradation, which led to the development of a new set of reaction conditions capable of affording a robust kinetic profile. During reaction optimization, a small impurity was observed, which was determined to be a dual C-H activation product. A second set of conditions were found to flip the selectivity of the C-H activation to form this tetracycle in high yield. A catalytic cycle is proposed for the intermol./intramol. C-H activation pathway. The experimental part of the paper was very detailed, including the reaction process of 1-Bromo-3-iodobenzene(cas: 591-18-4Related Products of 591-18-4)

1-Bromo-3-iodobenzene(cas: 591-18-4) has been used in the preparation of 1-(3′-bromophenyl)-3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodec-1-ene and 1-(3′-bromophenyl)-3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooct-1-ene.Related Products of 591-18-4 Further, it is involved in the preparation of oxygen-tethered 1,6-enynes.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In 2019,Journal of Organic Chemistry included an article by Wisniewski, Steven R.; Stevens, Jason M.; Yu, Miao; Fraunhoffer, Kenneth J.; Romero, Evan O.; Savage, Scott A.. SDS of cas: 591-18-4. The article was titled 《Utilizing Native Directing Groups: Synthesis of a Selective IKur Inhibitor, BMS-919373, via a Regioselective C-H Arylation》. The information in the text is summarized as follows:

BMS-919373 (I) is a highly functionalized quinazoline under investigation as a selective, potent Ikur current blocker. By utilizing the aminomethylpyridine side chain at C-4, a selective C-H functionalization at C-5 was invented, enabling the efficient synthesis of this mol. The strategy of leveraging this inherent directing group allowed the synthesis of this complex heterocycle in only six steps from commodity chems. The scope of the C-H activation was further investigated, and the generality of the transformation across a series of bicyclic aromatic heterocycles was explored. In the experiment, the researchers used many compounds, for example, 1-Bromo-3-iodobenzene(cas: 591-18-4SDS of cas: 591-18-4)

1-Bromo-3-iodobenzene(cas: 591-18-4) has been used in the preparation of 1-(3′-bromophenyl)-3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodec-1-ene and 1-(3′-bromophenyl)-3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooct-1-ene.SDS of cas: 591-18-4 Further, it is involved in the preparation of oxygen-tethered 1,6-enynes.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In 2017,Bogomolov, Alexandr S.; Goldort, Veniamin G.; Kochubei, Sergei A.; Baklanov, Alexey V. published 《Photodissociation of van der Waals complexes of iodine X-I2 (X = I2, C2H4) via charge-transfer state: velocity map imaging investigation》.Journal of Chemical Physics published the findings.Application of 624-73-7 The information in the text is summarized as follows:

The photodissociation of van der Waals complexes of iodine X-I2 (X = I2, C2H4) excited via Charge-Transfer (CT) band has been studied with the velocity map imaging technique. Photodissociation of both complexes gives rise to translationally “”hot”” mol. iodine I2 via channels differing by kinetic energy and angular distribution of the recoil directions. These measured characteristics together with the anal. of the model potential energy surface for these complexes allow us to infer the back-electron-transfer (BET) in the CT state to be a source of observed photodissociation channels and to make conclusions on the location of conical intersections where the BET process takes place. The BET process is concluded to provide an I2 mol. in the electronic ground state with moderate vibrational excitation as well as X mol. in the electronic excited state. In the case of X = I2, the BET process converts anion I2- of the CT state into the neutral I2 in the repulsive excited electronic state which then dissociates promptly giving rise to a pair of I atoms in the fine states 2P1/2. In the case of C2H4-I2, the C2H4 mols. appear in the triplet T1 electronic state. Conical intersection for corresponding BET process becomes energetically accessible after partial twisting of C2H4+ frame in the excited CT state of complex. The C2H4(T)-I2 complex gives rise to triplet ethylene as well as singlet ethylene via the T-S conversion. (c) 2017 American Institute of Physics. After reading the article, we found that the author used 1,2-Diiodoethane(cas: 624-73-7Application of 624-73-7)

1,2-Diiodoethane(cas: 624-73-7) is one of organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.Application of 624-73-7

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Bakherad, Mohammad; Keivanloo, Ali; Mohammadi, Marzieh; Jajarmi, Saeideh published an article in Letters in Organic Chemistry. The title of the article was 《Syntheses of 2-benzyl substituted imidazo[1,2-a]pyrimidines via coupling-cyclization under Pd-Cu catalysis》.Product Details of 41252-95-3 The author mentioned the following in the article:

The reaction of 1-(prop-2-yn-1-yl)pyrimidin-2(1H)-imine with various halobenzenes in the presence of a palladium catalyst leads to the production of 2-benzyl substituted imidazo[1,2-a]pyrimidines, e.g. I (R = 4-O2N, 2-O2N-4-Cl, 4-MeCO).1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3Product Details of 41252-95-3) was used in this study.

1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3) belongs to organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.Product Details of 41252-95-3

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Bakherad, Mohammad; Bahramian, Bahram; Nasr-Isfahani, Hossein; Keivanloo, Ali; Sang, Golnaz published an article on February 28 ,2009. The article was titled 《Polystyrene-supported palladium(II) ethylenediamine complex: A recyclable catalyst for the syntheses of 2-benzylimidazo[2,1-b][1,3]benzothiazoles by Sonogashira reaction》, and you may find the article in Chinese Journal of Chemistry.Recommanded Product: 41252-95-3 The information in the text is summarized as follows:

The polymer-supported palladium(II) ethylenediamine complex was used as a catalyst for the heterocyclization by Sonogashira reaction between aryl iodides and 2-amino-3-(2-propynyl)-1,3-benzothiazolium bromide and could readily be recovered from the reaction medium by a simple filtration and reused without a significant loss in its activity. In addition to this study using 1-Chloro-4-iodo-2-nitrobenzene, there are many other studies that have used 1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3Recommanded Product: 41252-95-3) was used in this study.

1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.Recommanded Product: 41252-95-3Halogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Computed Properties of C7H4FIO2On November 26, 2012 ,《Orally Active Metabotropic Glutamate Subtype 2 Receptor Positive Allosteric Modulators: Structure-Activity Relationships and Assessment in a Rat Model of Nicotine Dependence》 appeared in Journal of Medicinal Chemistry. The author of the article were Sidique, Shyama; Dhanya, Raveendra-Panickar; Sheffler, Douglas J.; Nickols, Hilary Highfield; Yang, Li; Dahl, Russell; Mangravita-Novo, Arianna; Smith, Layton H.; D’Souza, Manoranjan S.; Semenova, Svetlana; Conn, P. Jeffrey; Markou, Athina; Cosford, Nicholas D. P.. The article conveys some information:

Compounds that modulate metabotropic glutamate subtype 2 (mGlu2) receptors have the potential to treat several disorders of the central nervous system (CNS) including drug dependence. Herein the authors describe the synthesis and structure-activity relationship (SAR) studies around a series of mGlu2 receptor pos. allosteric modulators (PAMs). The effects of N-substitution and substitutions on the aryl ring were identified as key areas for SAR exploration. Investigation of the effects of varying substituents in both the isoindolinone (I) and benzisothiazolone (II) series led to compounds with improved in vitro potency and/or efficacy. In addition, several analogs exhibited promising pharmacokinetic (PK) properties. Furthermore, compound I was shown to dose-dependently decrease nicotine self-administration in rats following oral administration. Our data, showing for the first time efficacy of an mGlu2 receptor PAM in this in vivo model, suggest potential utility for the treatment of nicotine dependence in humans. The results came from multiple reactions, including the reaction of 5-Fluoro-3-iodobenzoic acid(cas: 723294-74-4Computed Properties of C7H4FIO2)

5-Fluoro-3-iodobenzoic acid(cas: 723294-74-4) belongs to organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Computed Properties of C7H4FIO2

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Reference of 1-Chloro-4-iodo-2-nitrobenzeneOn September 30, 2009 ,《Synthesis and potent antifungal activity against Candida species of some novel 1H-benzimidazoles》 was published in Journal of Heterocyclic Chemistry. The article was written by Goeker, Hakan; Alp, Mehmet; Ates-Alagoez, Zeynep; Yildiz, Sulhiye. The article contains the following contents:

A series of 47 novel N1-alkylated-2-aryl-5(6)-substituted-1H-benzimidazoles and their three novel indole analogs were synthesized and evaluated for in vitro antifungal activities against Candida species by the tube dilution method. The results showed that I and II, having pyridine at the position C-2, of benzimidazoles exhibited the greatest activity with MIC values of 6.25-3.12 μg/mL. Indole analogs III (R1 = H, R2 = Br; R1 = Pr, R2 = Br, CN) have no inhibitory activity. The results came from multiple reactions, including the reaction of 1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3Reference of 1-Chloro-4-iodo-2-nitrobenzene)

1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.Reference of 1-Chloro-4-iodo-2-nitrobenzene

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Tumour-targeting photosensitisers for one- and two-photon activated photodynamic therapy》 was written by Jenni, Sebastien; Sour, Angelique; Bolze, Frederic; Ventura, Barbara; Heitz, Valerie. Synthetic Route of C7H5IO2This research focused ontumor photosensitizer photon excitation photodynamic therapy. The article conveys some information:

Despite the advantages of photodynamic therapy (PDT) over chemotherapy or radiotherapy such as low side effects, lack of treatment resistance and spatial selectivity inherent to light activation of the drug, several limitations especially related to the photosensitizer (PS) prevent PDT from becoming widespread in oncol. Herein, new folic acid- and biotin-conjugated PSs for tumor-targeting PDT are reported, with promising properties related to PDT such as intense absorption following one-photon excitation in the red or two-photon excitation in the near-IR, and also high singlet oxygen quantum yield (close to 70% in DMSO). Cellular studies demonstrated that both targeted PSs induced phototoxicity, the folate-targeted PS being the most effective one with 80% of cell death following 30 min of irradiation and a phototoxicity four times higher than that of the non-targeted PS. This result is in accordance with the uptake of the folate-targeted PS in HeLa cells, mediated by the folate receptors. Moreover, this folate-targeted PS was also phototoxic following two-photon excitation at 920 nm, opening new perspectives for highly selective PDT treatment of small and deep tumors. In the part of experimental materials, we found many familiar compounds, such as 4-Iodobenzoic acid(cas: 619-58-9Synthetic Route of C7H5IO2)

4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. Organic iodides are used in veterinary products (Organic Iodide Powder) as a nutritional source of iodine.Synthetic Route of C7H5IO2 In the chemical industry, alkyl iodides serve as excellent alkylating agents and, specifically, methyl iodide is used as a methylating agent in the synthesis of various pharmaceutical drugs.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Ethyl 2-Cyano-2-(2-Nitrophenylsulfonyloximino)Acetate (ortho-NosylOXY) Mediated One-Pot Racemization Free Synthesis of Ureas, Carbamates, and Thiocarbamates via Curtius Rearrangement》 was written by Kalita, Tapasi; Dev, Dharm; Mondal, Sandip; Giri, Rajat Subhra; Mandal, Bhubaneswar. Synthetic Route of C7H5IO2This research focused onurea preparation; carbamate preparation; thiocarbamate preparation; carboxylic acid ethyl cyano nitrophenylsulfonyloximino acetate Curtius rearrangement. The article conveys some information:

A detailed NMR-based mechanism study is incorporated here. Direct conversion of to ureas RNHC(O)NHR1 (R = Ph, 4-methylphenyl, 4-methoxybenzyl, (tert-butoxycarbonylamino)(phenyl)methyl, etc.; R1 = 4-chlorophenyl, tert-Bu, methoxycarbonylmethyl, etc.), carbamates RNHC(O)OR1 (R = 4-methoxyphenyl, 4-bromophenyl; R1 = 4-nitrobenzyl, 4-methoxybenzyl), and thiocarbamate RNHC(O)SR1 (R = Ph, undecan-1-yl, 2-methoxyphenyl; R1 = 4-chlorobenzyl) in a single pot via Curtius rearrangement is accomplished. One recently established coupling reagent, ethyl-2-cyano-2-(2-nitrophenylsulfonyloximino)acetate (ortho-NosylOXY), is successfully used for the racemization free synthesis of ureas, di-peptidyl ureas, and carbamates with moderate to good yield (82-69%). This single-pot hassle-free procedure works with a diverse range of N-protecting groups Fmoc, Boc, and Cbz. Various amines R1NH2, including aromatic, Me esters of amino acids, tert-butylamine, benzyl alcs. (such as 4-nitrobenzyl alc., 4-methoxybenzyl alc.), and (4-chlorophenyl)-methanethiol, are used as nucleophiles. Racemization suppression, easy removal of byproducts, and less waste generation make this methodol. useful. The experimental process involved the reaction of 4-Iodobenzoic acid(cas: 619-58-9Synthetic Route of C7H5IO2)

4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Synthetic Route of C7H5IO2Iodo alkanes participate in a variety of organic synthesis reactions, which include the Simmons–Smith reaction (cyclopropanation using iodomethane), Williamson ether synthesis, Wittig reaction, Grignard reaction, alkyl coupling reactions, and Wurtz reaction.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Drug Design, in Vitro Pharmacology, and Structure-Activity Relationships of 3-Acylamino-2-aminopropionic Acid Derivatives, a Novel Class of Partial Agonists at the Glycine Site on the N-Methyl-D-aspartate (NMDA) Receptor Complex》 was written by Urwyler, Stephan; Floersheim, Philipp; Roy, Bernard L.; Koller, Manuel. Quality Control of 1-Chloro-4-iodo-2-nitrobenzene And the article was included in Journal of Medicinal Chemistry on August 27 ,2009. The article conveys some information:

Retaining agonistic activity at the glycine coagonist site of the NMDA receptor in mols. derived from glycine or D-serine has proven to be difficult because in the vicinity of the α-amino acid group little substitution is tolerated. We have solved this problem by replacing the hydroxy group of D-serine with an amido group, thus keeping the hydrogen donor function and allowing for further substitution and exploration of the adjacent space. Heterocyclic substitutions resulted in a series of 3-acylamino-2-aminopropionic acid derivatives, with high affinities in a binding assay for the glycine site. In a functional assay assessing the activation of the glycine site, these compounds displayed a wide range of intrinsic efficacies, from antagonism to a high degree of partial agonism. Structure-activity relationships reveal that lipophilic substituents, presumably filling an addnl. hydrophobic pocket, are accepted by the glycine site, provided that they are separated from the α-amino acid group by a short linker. The experimental process involved the reaction of 1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3Quality Control of 1-Chloro-4-iodo-2-nitrobenzene)

1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3) belongs to organic iodides. Organic iodides are used in veterinary products (Organic Iodide Powder) as a nutritional source of iodine. In the chemical industry, alkyl iodides serve as excellent alkylating agents and, specifically, methyl iodide is used as a methylating agent in the synthesis of various pharmaceutical drugs.Quality Control of 1-Chloro-4-iodo-2-nitrobenzene

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com